This research uses mainly qualitative methods, and quantitative methods for assistance. The goal is to design and conduct a teaching of environmental issues using picture books as the medium, and to analyze and inquire into the result of the teaching by means of classroom observation, worksheets, questionnaires, and journal entries. The important findings are as follows: 1.Based on suggestions and reviews of environmental education experts, workers, experienced teachers, and teachers who have experience in using picture books as the medium, "the relation between the human development and natural environment" is designed to be the subject of teaching activit ies. We choos e nine picture books and design related activities to help students understand the relation between the human development and natural environment and the influence of human development upon environment. We hope that students will realize the importance of the environmental protection and consequently take action to protect environment. 2.Research objects have positive attitude to picture books and related teaching activit ies and methods. There are 96.4 %students who like reading picture books. 92.9%of students like the teaching activit ies using picture books as the medium. In addition, 96.4%of students hope to participate again in the similar activity. 3.Research objects like picture books that are both interesting and functional. Judging upon the content and language, they like the vivid realistic picture books and books that can increase their knowledge and help them to learn. Judging upon the pictures and illustration, student like books with many fine-designed pictures/illustration; books with pictures through which students can construct story on their own are most favorable. 4.Using picture books as the medium to teach environmental issues us can raise the environmental awarensess of students and increase their environmental knowledge. It also can obviously promote students' environmental attitude (t=9.031, p<.05). through storybook teaching activities students can identity environmental issues, come up with concrete solutions, and commit themselves to protecting the environment.